Data formats for gnss_vlm:

Longitude(°)    Latitude(°)   GNSS_observed_vertical_velocity(mm/a) uncertainty_observed_vertical_velocity(mm/a)  vertical_velocity_with_non-tectonic_removed(mm/a) Station_name

Data formats for leveling_vlm.dat
Longitude(°)    Latitude(°)   leveling_observed_vertical_velocity(mm/a) uncertainty_observed_vertical_velocity(mm/a)  vertical_velocity_with_non-tectonic_removed(mm/a) Station_ID